```html
<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Elmo.chat - 智能AI助手 | 网页内容总结与分析工具</title>
    <link rel="stylesheet" href="https://cdn.staticfile.org/font-awesome/6.4.0/css/all.min.css">
    <link rel="stylesheet" href="https://cdn.staticfile.org/tailwindcss/2.2.19/tailwind.min.css">
    <link href="https://fonts.googleapis.com/css2?family=Noto+Serif+SC:wght@400;500;600;700&family=Noto+Sans+SC:wght@300;400;500;700&display=swap" rel="stylesheet">
    <script src="https://cdn.jsdelivr.net/npm/mermaid@latest/dist/mermaid.min.js"></script>
    <style>
        body {
            font-family: 'Noto Sans SC', Tahoma, Arial, Roboto, "Droid Sans", "Helvetica Neue", "Droid Sans Fallback", "Heiti SC", "Hiragino Sans GB", Simsun, sans-serif;
            color: #333;
            line-height: 1.6;
        }
        .hero-gradient {
            background: linear-gradient(135deg, #6e8efb 0%, #a777e3 100%);
        }
        .card-hover {
            transition: all 0.3s ease;
        }
        .card-hover:hover {
            transform: translateY(-5px);
            box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
        }
        .feature-icon {
            font-size: 2.5rem;
            background: linear-gradient(135deg, #6e8efb 0%, #a777e3 100%);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }
        .highlight {
            position: relative;
            z-index: 1;
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        .highlight:after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 100%;
            height: 30%;
            background-color: rgba(110, 142, 251, 0.3);
            z-index: -1;
            transform: skewY(-2deg);
        }
        .drop-cap:first-letter {
            float: left;
            font-size: 4.5em;
            line-height: 0.9;
            margin: 0.1em 0.1em 0.1em 0;
            color: #6e8efb;
            font-weight: 700;
        }
    </style>
</head>
<body class="bg-gray-50">
    <!-- Hero Section -->
    <section class="hero-gradient text-white py-20 md:py-32 px-4">
        <div class="container mx-auto max-w-6xl">
            <div class="flex flex-col md:flex-row items-center">
                <div class="md:w-1/2 mb-10 md:mb-0">
                    <h1 class="text-4xl md:text-5xl font-bold mb-6 leading-tight">Elmo.chat<br><span class="highlight">智能AI助手</span></h1>
                    <p class="text-xl mb-8 opacity-90">基于Lepton AI的Chrome扩展程序，无需账户即可免费使用，帮助您快速总结和理解网页、视频、PDF等各类内容</p>
                    <div class="flex space-x-4">
                        <a href="https://www.elmo.chat/" class="bg-white text-indigo-600 px-6 py-3 rounded-lg font-semibold hover:bg-gray-100 transition duration-300">
                            <i class="fas fa-external-link-alt mr-2"></i>访问官网
                        </a>
                        <a href="#features" class="border-2 border-white text-white px-6 py-3 rounded-lg font-semibold hover:bg-white hover:bg-opacity-10 transition duration-300">
                            <i class="fas fa-info-circle mr-2"></i>了解更多
                        </a>
                    </div>
                </div>
                <div class="md:w-1/2 flex justify-center">
                    <img src="https://cdn.nlark.com/yuque/0/2025/png/21449790/1744361118903-9864c88e-f69e-4501-9464-df1f372b0d77.png" alt="Elmo.chat界面" class="rounded-xl shadow-2xl max-w-full h-auto">
                </div>
            </div>
        </div>
    </section>

    <!-- Features Overview -->
    <section id="features" class="py-16 px-4">
        <div class="container mx-auto max-w-6xl">
            <div class="text-center mb-16">
                <h2 class="text-3xl md:text-4xl font-bold mb-4">为什么选择Elmo.chat?</h2>
                <p class="text-gray-600 max-w-2xl mx-auto">一个功能强大且完全免费的AI助手，为您提供高效的内容理解和知识获取体验</p>
            </div>
            
            <div class="grid grid-cols-1 md:grid-cols-3 gap-8 mb-16">
                <div class="bg-white rounded-xl p-8 shadow-md card-hover">
                    <div class="feature-icon mb-4">
                        <i class="fas fa-bolt"></i>
                    </div>
                    <h3 class="text-xl font-bold mb-3">即时内容摘要</h3>
                    <p class="text-gray-600">快速总结网页、PDF和Google Docs内容，无需阅读全文即可掌握核心信息</p>
                </div>
                <div class="bg-white rounded-xl p-8 shadow-md card-hover">
                    <div class="feature-icon mb-4">
                        <i class="fas fa-globe"></i>
                    </div>
                    <h3 class="text-xl font-bold mb-3">多语言支持</h3>
                    <p class="text-gray-600">支持多种语言的内容分析和翻译，打破语言障碍，实现全球知识获取</p>
                </div>
                <div class="bg-white rounded-xl p-8 shadow-md card-hover">
                    <div class="feature-icon mb-4">
                        <i class="fas fa-lock"></i>
                    </div>
                    <h3 class="text-xl font-bold mb-3">隐私保护</h3>
                    <p class="text-gray-600">完全免费，无需账户，不存储用户网页内容，确保您的隐私安全</p>
                </div>
            </div>
        </div>
    </section>

    <!-- Detailed Features -->
    <section class="py-16 px-4 bg-gray-100">
        <div class="container mx-auto max-w-6xl">
            <h2 class="text-3xl font-bold text-center mb-16">核心功能与优势</h2>
            
            <div class="grid grid-cols-1 md:grid-cols-2 gap-12">
                <div class="bg-white rounded-xl p-8 shadow-md">
                    <h3 class="text-2xl font-bold mb-4 text-indigo-600">智能内容分析</h3>
                    <ul class="space-y-4">
                        <li class="flex items-start">
                            <i class="fas fa-check-circle text-green-500 mt-1 mr-3"></i>
                            <span>实时快速总结网页内容，提炼核心观点</span>
                        </li>
                        <li class="flex items-start">
                            <i class="fas fa-check-circle text-green-500 mt-1 mr-3"></i>
                            <span>深入分析YouTube视频内容，提供快速洞察和导航</span>
                        </li>
                        <li class="flex items-start">
                            <i class="fas fa-check-circle text-green-500 mt-1 mr-3"></i>
                            <span>与PDF文档交互，轻松理解大型文档和教科书</span>
                        </li>
                        <li class="flex items-start">
                            <i class="fas fa-check-circle text-green-500 mt-1 mr-3"></i>
                            <span>直接从页面中获取问题答案，节省搜索时间</span>
                        </li>
                    </ul>
                </div>
                
                <div class="bg-white rounded-xl p-8 shadow-md">
                    <h3 class="text-2xl font-bold mb-4 text-indigo-600">高效工作流</h3>
                    <ul class="space-y-4">
                        <li class="flex items-start">
                            <i class="fas fa-check-circle text-green-500 mt-1 mr-3"></i>
                            <span>关键词探索功能，在不离开当前网页的情况下获取相关信息</span>
                        </li>
                        <li class="flex items-start">
                            <i class="fas fa-check-circle text-green-500 mt-1 mr-3"></i>
                            <span>多语言翻译功能，简化翻译过程</span>
                        </li>
                        <li class="flex items-start">
                            <i class="fas fa-check-circle text-green-500 mt-1 mr-3"></i>
                            <span>重组复杂段落，使其更加清晰易懂</span>
                        </li>
                        <li class="flex items-start">
                            <i class="fas fa-check-circle text-green-500 mt-1 mr-3"></i>
                            <span>在不同格式间快速切换，包括网页、PDF和Google Docs</span>
                        </li>
                    </ul>
                </div>
            </div>
        </div>
    </section>

    <!-- Use Cases -->
    <section class="py-16 px-4">
        <div class="container mx-auto max-w-6xl">
            <h2 class="text-3xl font-bold text-center mb-16">适用场景</h2>
            
            <div class="grid grid-cols-1 md:grid-cols-3 gap-8">
                <div class="bg-white rounded-xl p-8 shadow-lg border-t-4 border-indigo-500 card-hover">
                    <div class="text-indigo-500 mb-4">
                        <i class="fas fa-briefcase text-3xl"></i>
                    </div>
                    <h3 class="text-xl font-bold mb-3">职场助手</h3>
                    <p class="text-gray-600 mb-4">提高工作效率，优化邮件、报告和文案写作，让您的工作更加高效专业</p>
                    <ul class="text-sm text-gray-500 space-y-2">
                        <li class="flex items-start">
                            <i class="fas fa-check text-indigo-300 mr-2 mt-1"></i>
                            <span>快速总结会议记录</span>
                        </li>
                        <li class="flex items-start">
                            <i class="fas fa-check text-indigo-300 mr-2 mt-1"></i>
                            <span>优化商业文案</span>
                        </li>
                        <li class="flex items-start">
                            <i class="fas fa-check text-indigo-300 mr-2 mt-1"></i>
                            <span>高效阅读行业报告</span>
                        </li>
                    </ul>
                </div>
                
                <div class="bg-white rounded-xl p-8 shadow-lg border-t-4 border-purple-500 card-hover">
                    <div class="text-purple-500 mb-4">
                        <i class="fas fa-graduation-cap text-3xl"></i>
                    </div>
                    <h3 class="text-xl font-bold mb-3">学习工具</h3>
                    <p class="text-gray-600 mb-4">帮助学生和研究者解答疑问，辅助论文写作，提升学习效率和研究质量</p>
                    <ul class="text-sm text-gray-500 space-y-2">
                        <li class="flex items-start">
                            <i class="fas fa-check text-purple-300 mr-2 mt-1"></i>
                            <span>快速理解学术论文</span>
                        </li>
                        <li class="flex items-start">
                            <i class="fas fa-check text-purple-300 mr-2 mt-1"></i>
                            <span>总结教科书重点</span>
                        </li>
                        <li class="flex items-start">
                            <i class="fas fa-check text-purple-300 mr-2 mt-1"></i>
                            <span>辅助论文写作</span>
                        </li>
                    </ul>
                </div>
                
                <div class="bg-white rounded-xl p-8 shadow-lg border-t-4 border-blue-500 card-hover">
                    <div class="text-blue-500 mb-4">
                        <i class="fas fa-code text-3xl"></i>
                    </div>
                    <h3 class="text-xl font-bold mb-3">开发者支持</h3>
                    <p class="text-gray-600 mb-4">提供编程建议，优化代码，提高技术生产力，加速开发流程</p>
                    <ul class="text-sm text-gray-500 space-y-2">
                        <li class="flex items-start">
                            <i class="fas fa-check text-blue-300 mr-2 mt-1"></i>
                            <span>快速理解技术文档</span>
                        </li>
                        <li class="flex items-start">
                            <i class="fas fa-check text-blue-300 mr-2 mt-1"></i>
                            <span>代码优化建议</span>
                        </li>
                        <li class="flex items-start">
                            <i class="fas fa-check text-blue-300 mr-2 mt-1"></i>
                            <span>API文档总结</span>
                        </li>
                    </ul>
                </div>
            </div>
        </div>
    </section>

    <!-- Visual Diagram -->
    <section class="py-16 px-4 bg-gray-100">
        <div class="container mx-auto max-w-6xl">
            <h2 class="text-3xl font-bold text-center mb-12">Elmo.chat工作流程</h2>
            <div class="mermaid bg-white p-8 rounded-xl shadow-md">
                graph TD
                    A[安装Elmo.chat扩展] --> B[访问网页/PDF/视频]
                    B --> C[点击Elmo图标]
                    C --> D{选择功能}
                    D -->|内容摘要| E[获取核心观点]
                    D -->|关键词探索| F[获取相关知识点]
                    D -->|提问| G[获得即时答案]
                    D -->|翻译| H[多语言转换]
                    E --> I[提高阅读效率]
                    F --> I
                    G --> I
                    H --> I
                    I --> J[知识获取与决策]
            </div>
        </div>
    </section>

    <!-- Key Features Detail -->
    <section class="py-16 px-4">
        <div class="container mx-auto max-w-6xl">
            <div class="flex flex-col md:flex-row items-center mb-16">
                <div class="md:w-1/2 mb-10 md:mb-0 md:pr-10">
                    <h2 class="text-3xl font-bold mb-6">智能对话与知识整合</h2>
                    <p class="text-gray-600 mb-6 drop-cap">Elmo.chat基于强大的AI技术，能够流畅理解和回应各种问题，支持多轮对话并保持上下文连贯。它涵盖编程、商业、科技、市场营销等多个领域，为开发者、企业家和学习者提供专业支持。</p>
                    <div class="bg-indigo-50 p-6 rounded-lg border-l-4 border-indigo-500">
                        <p class="italic text-indigo-700">"从广告文案到社交媒体内容，Elmo.chat帮助用户快速生成高质量文本，显著提高创作效率。AI还能根据用户需求调整风格，提供更贴近个人需求的回答。"</p>
                    </div>
                </div>
                <div class="md:w-1/2">
                    <div class="bg-white p-8 rounded-xl shadow-md">
                        <div class="flex items-start mb-6">
                            <div class="bg-indigo-100 p-3 rounded-full mr-4">
                                <i class="fas fa-comments text-indigo-600 text-xl"></i>
                            </div>
                            <div>
                                <h3 class="font-bold text-lg mb-2">多轮对话能力</h3>
                                <p class="text-gray-600">保持上下文连贯，理解复杂问题，像人类一样进行自然对话</p>
                            </div>
                        </div>
                        <div class="flex items-start mb-6">
                            <div class="bg-purple-100 p-3 rounded-full mr-4">
                                <i class="fas fa-brain text-purple-600 text-xl"></i>
                            </div>
                            <div>
                                <h3 class="font-bold text-lg mb-2">专业知识库</h3>
                                <p class="text-gray-600">涵盖技术、商业、学术等多个领域，提供专业准确的回答</p>
                            </div>
                        </div>
                        <div class="flex items-start">
                            <div class="bg-blue-100 p-3 rounded-full mr-4">
                                <i class="fas fa-magic text-blue-600 text-xl"></i>
                            </div>
                            <div>
                                <h3 class="font-bold text-lg mb-2">个性化创作</h3>
                                <p class="text-gray-600">根据需求调整文本风格，生成符合场景的高质量内容</p>
                            </div>
                        </div>
                    </div>
                </div>
            </div>
        </div>
    </section>

    <!-- FAQ -->
    <section class="py-16 px-4 bg-gray-100">
        <div class="container mx-auto max-w-4xl">
            <h2 class="text-3xl font-bold text-center mb-12">常见问题</h2>
            
            <div class="space-y-6">
                <div class="bg-white p-6 rounded-xl shadow-sm hover:shadow-md transition-shadow">
                    <div class="flex justify-between items-center cursor-pointer">
                        <h3 class="font-bold text-lg">Elmo.chat是免费的吗？</h3>
                        <i class="fas fa-chevron-down text-gray-400"></i>
                    </div>
                    <div class="mt-4 text-gray-600">
                        <p>是的，Elmo.chat是一个完全免费的Chrome扩展程序，不需要任何付费账户或提供支付信息即可使用所有功能。</p>
                    </div>
                </div>
                
                <div class="bg-white p-6 rounded-xl shadow-sm hover:shadow-md transition-shadow">
                    <div class="flex justify-between items-center cursor-pointer">
                        <h3 class="font-bold text-lg">我需要创建账户才能使用吗？</h3>
                        <i class="fas fa-chevron-down text-gray-400"></i>
                    </div>
                    <div class="mt-4 text-gray-600">
                        <p>不需要。Elmo.chat设计为即插即用，无需任何账户注册流程，安装后即可立即开始使用。</p>
                    </div>
                </div>
                
                <div class="bg-white p-6 rounded-xl shadow-sm hover:shadow-md transition-shadow">
                    <div class="flex justify-between items-center cursor-pointer">
                        <h3 class="font-bold text-lg">Elmo.chat会存储我的网页内容吗？</h3>
                        <i class="fas fa-chevron-down text-gray-400"></i>
                    </div>
                    <div class="mt-4 text-gray-600">
                        <p>不会。Elmo.chat尊重用户隐私，不会存储您浏览的网页内容或任何个人信息，所有处理都在本地进行。</p>
                    </div>
                </div>
                
                <div class="bg-white p-6 rounded-xl shadow-sm hover:shadow-md transition-shadow">
                    <div class="flex justify-between items-center cursor-pointer">
                        <h3 class="font-bold text-lg">Elmo.chat支持哪些语言？</h3>
                        <i class="fas fa-chevron-down text-gray-400"></i>
                    </div>
                    <div class="mt-4 text-gray-600">
                        <p>Elmo.chat支持多种主流语言，包括但不限于中文、英文、西班牙语、法语、德语等，可以实现内容分析、总结和翻译功能。</p>
                    </div>
                </div>
            </div>
        </div>
    </section>

    <!-- CTA -->
    <section class="py-20 px-4 hero-gradient text-white">
        <div class="container mx-auto max-w-4xl text-center">
            <h2 class="text-3xl md:text-4xl font-bold mb-6">准备好提升您的内容理解效率了吗？</h2>
            <p class="text-xl mb-8 opacity-90">立即安装Elmo.chat，体验AI驱动的智能内容分析和知识获取</p>
            <a href="https://www.elmo.chat/" class="inline-block bg-white text-indigo-600 px-8 py-4 rounded-lg font-semibold text-lg hover:bg-gray-100 transition duration-300">
                <i class="fas fa-download mr-2"></i>免费下载使用
            </a>
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```